Winding machine



May 31, 1938. G. w. SCOTT 2,139,445

WINDING MACHINE Filed Dec. 13, 1934 8 Sheeis-Sheet 3 I Hg- 5 I'NVENTOR L&W

May 31, 1938. w 5w" 2,119,445

. W'INDING MACHINE Filed Dec; 13. 192w a Sheets-Sheet 4 y I G. w. SCOTT2,119,445

WINDING MACHINE Filed Dec. 15, 1954 s Sheets-Sheet 5 (Ar/W W W m ORNEY'May 31, 1938. a G. w. scoTT 2,119,445

. WINDING MACHINE I Filed Dec. 13, 1934 8 Sheets-Sheet 6 INVENTOR m? 22? \ULJZGORNEY I May 31, 1938; v 3, w sco -r 2,119,445

wmnmg MACHINE Filed Dec. 13, 1934 8 Sheets-Sheet '7 |NVENTOR I BY L. v

I May 31, 1938. G. w. sc'rT wmbms MACHINE Filed Dec. 15; 1954 8Sheets-Sheet 8 hnh.

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Patentd May 31, 1938 UNITED STATES "PATENT OFFICE WINDING MACHINE GeorgeW. Scott, Providence, 3. 1., assignmto a Tobe Deutsclnnann Corporation,Canton, Masa, a corporation of Delaware 7 v Application December 13,1934,'Serial No. 757,350

- 1s qlaims. (01. 242-56) there is usually rolled together a. numberoflayers of paper and a number of layers of tin or aluminum foil in such amanner that the tin or aluminum 1011 forms opposite electrodes of anelectrical condenser. In the ordinary condenser winding there may befirst a layer of aluminum foil, next a layer of paper, third anotherlayer of aluminum .foil, and on top of this a layer 01' paper. If it isdesired a winding can be made with three layers of aluminum separated bythree layers of paper. A number-of various types of windings of thisnature may be made and with the machine of the present invention, thesewindings may be made as desired, either large or small, and of thedesired electrical capacity and other electrical characteristics.

1 The present invention is particularly designed to overcome thehandicap imposed. by the flimsi ness of the material used. ,As is wellknown the paper and foil used in the manufacture of electricalcondensers are very fine, and not only do they tear easily if thetension on the sheets is varied, but also it should be noted thatbecause of its delicate nature, it cannot-be pushed but must always bedrawn. This oflers considerable difliculty in'designing machinery tohandle such material, particularly for the prment purpose, since anumber of operations must be performed mandrel.

In amachine of may be six sheets of foil and paper that go to form thewinding, it is necessary to flt-jindividually each one of these sixsheets to the point where the mandrel will grasp them and begin to wrapthem on a-winding element. In addition, after the winding is made, eachsheet must be cut at relatively different places so that the connectingfoils will not have an opportunity of making electrical contactwith'each other and thereby create a short circuit between thediflferent layers.

After thep per and foil are cut, which is in itself invention.

the present type where there a' dimcult task because of their thinnessthe winding or roll must be sealed and lastly it must be ejected fromthe spindle or mandrel. It

should also be noted that in order to provide a fully automatic device,the exact number of. tur 5 must be wound and following this, after thewinding is ejected, the mandrel must come to rest always in relativelythe same position to be able to receive the foil'and paper.

In the present invention condenser windings-1o may be made in relativelylarge or small sizes. The paper and foil is automatically fed fromtheindividual rolls at the top of the machine. A split mandrelautomatically opens and closes to grasp the paperand foil. The foil isrolled with 15 the proper number 01' turns, the roll is then sealed andfinally ejected, whereupon the mandrel returns in position to receivethe paper and foil for the making of a new roll. The exact manner inwhich the mechanism operates, the go results obtained, and utility andadvantages of the invention, will be better understood from thedescription given below taken in connection with the drawings showing van embodiment of the Figure 1 shows .a plan view of the invention asviewed from the top. a

Figure 2 shows the vertical elevation seen from the jiront. I

Figured shows a side elevation.

Figure 4 shows a fragmentary view in perspec-f tive showing in detailthe method of feeding the foil and paper, the split mandrel, and themanner in whichthe toil and paper is received on the a mandrel. v

Figure 5 shows 9; fragmentary viewin perspective showing in part thecutting mechanismfor severing the toil and-paper and the cam elementforcontrolling the same. P

Figure 6 shows'inperspective a detail of a part on the material besidesmerely rolling it on a shown in Figure indicating how the paper and foilare released and fed in the operation of the mechanism. Figure '1 shows,in perspective, a front view of the machine indicating the various camsand controls of the mechanism.

Figure 8 shows a section taken on the line 8-8' of Figure 1. Figure 9 isa rear view of the invention looking from the upper part of the deviceas shown in Figure 1. H Figures 10, 11 and 12 show the details of thespring shuttlefor ping and feeding the foil and paper. a

Figures and 16 show the mandrel as still in an open position.

5 Figures 17 and 18 show the mandrel in position for ejecting thewinding.

' Figure 19 shows a detailof the clutch mechariism for rotating andreleasing the shaft on which the mandrel is mounted.

Figure 20' shows' a detail of the method of a supporting the shuttlesindicatedin Figure 4,

and Figure 21, shows a further detail of the same thing. 1

, In Figures 1, 2 and.3 there is shown a base 15 element I, upon whichis-rnounted a central casting or'frame 2 and a motor .0. The motor I ismade fast to the frame I by bolts 4 or in any other suitable manner. Atthe extremities of frame l,'-there isla second frame which car- 2o riesa rigid element 0 upon which the rolls 1 of tin foil and paper aremounted. 0n the frame 2 on which most of the mechanism is mounted, arethree upwardly extending brackets a ie sss driven from the sprocket"gear It. This shaft attached to-it, a ring gear 44, whose function willbe explained later, and a cone clutch 45 which operates the clutchingelement 46 to which the shaft I1 is held fast. In the opera tion of theshaft i4, theraised element 43 on the face of the cam 28 forces thelower end of the lever 38 to the left as viewed in Figure 'I *when thepart 33 of the cam 2| comes beneath and fits in-a groove 4'. in theclutch element 46.

As the. finger or roller 34 as shown in Figure 8 I is moved to theright,' conipel1ing the clutch ele- H, 'II, and, through which run theshaft i4.

The shaft I4 is driven indirectly by the motor,

3 by means of the sprocket wheel II. The sprocket wheel drives thesprocket chain it which in turn drives the large sprocket wheel llcarried bythe shaft "to which a gear train is connected. In this systemthe gear is on the shaft il drives the gear 10 through the idler gear20.

A On the shaft with the gear it is a small gear 2i which drives a l rgear 22 which in turn drives through a further reduction system gear 23and 35 gear 24r The whole gear system including the gears ll, I9, 20,-2I, 22,13 and being a reduction system to obtain for thecontrol shaftl4, driven by the gear 24. The gear system is such that certain gears,principally, thegeaijs 40 I9 and-20 may be interchanged with gearsof j-other sizes to vary the operation of the mechanism. This makes itpossible within a certain limited range to choose the :number of turnsthat the windings are to have. If the control 4.5 shaft i4 is made torotate faster as is the case in providing a lower-gear reduction ratio,then the complete operation of the mechanisingwill take place inrelatively fewer turns of the spindle l1 and therefore acondenser of afewer number 50 of turns will be-made. The gearing isshown more indetail in Figure 9; than in Figures 1 and 3. The shaft ashas been statedmaybe called the control shaft. This shaft carries two large ment 46 tomove to the left, a projecting bar Bil,

carried at the end I! of the fork element, comes in contact with aroller 5| mounted on the lever and"; This lever arm 52 is pivoted in a Hforked bracket 53 mounted by machine bolts I4 to a part of the frame 85formedas an extension of the upright bracket 0. The lever arm 52 ispivoted tothe forked bracket at 56 and carries at the other end anadjustable stud '51 which is adapted to come in contact with theprojecting stud or screw 58 attached to a co1lar I! mounted on and madefast to the shaft l|'.-' Normally a-spring ill between the collar 58 andthe collar 6| formed at the outside of the groove 4| of the clutchelement forces the clutch element 46 into engagement with the coneprojecting into it. hi this position the shaft i1 and the shaft II arerotated together. As the lever It through the operation ofthe ,cam 28causes the clutch element 46 to leave the surface of the cone 45, theend projecting piece forces the roller ll of the lever 52 outwardcausing the adjustable with weakened force, partly due to the inertia ofthe system and, partly due to the eifect of the drag spring 41furnishing some power to the shaft H which continues tomove until theprojectingstud N on the collar It comes up against 1camsllandflaswellas'asmallercamilas 68 indicated in1 lgure'3. Ibis shaftalsoarriu a cam 2. and external of the support, ll, cams 20, 3., ii and82. The cam 2! is shown in perspective inFigure'iandin sectionlnFigureB.Thiscam is' madewith a flat surfaceiexcept for a raised i portion isupon which the angel-arises. This finger which is adjustable asindicated by the nut ii, is carried by a lever arm ll pivoted by thepln'll in a bridge 3! extendingacross'from .by'the arrow A. Above thecam 21 there rides the adjustable pin I'I, whereupon the shaft l1" comesabruptly to rest. Inthis position as will be shown later, the mandrel 43is'opened so that, it is ready to receive the sheets of paper and foilpreparatory to the nextoperation. The shaft l4 as has been stated abovealso carries thecams 2|, 2 and 21. The cam'fl is shown in Figures 3, 4,7 and Figures 13 to 18, inclusive; The cam 2'! is formed with one largeprojection 62 as in-'- dicated in Figures 13, to 18.- This cam isnormally rotated in a clockwise position as shown the pin '03 which isat one end of a bell-crank lever i4 mounted on a bracket 65 which isintegral with the front bearing vI i of the sllDD rt extends into agroove; 4| of a clutch element 42-.

"Inc-purpose of" the clutch element 4l is to disro engage'the driveshaft 11 at one at'the' opposite and carrying the spindle or mandrel,4l.' This mechanism is shown more clearly in Figures 1a and,19. n Figure19 it will be seen that the mandrel shaft comprises two 'parts ,springwire II placed 1 5 I1 and "f, the shaft II being the drive shaft,

ing bracket II. The lever 54 is pivoted by'means of the shaft aboutwhich is wound a fl'lainst-the frame II in such a manner to holdtheupper end "of the lever to the right as shown in 13.-The

spring 81 in this position holds the pin against caries the mandrel 43.as

cam 21. The shaft H! as hasbeen stated dicated in Figures 13, 15, 16 and17, comprises a fixed jaw'89 and a pivoted jaw I8. The pivoted jaw I8 ispinned to the back end of the fixture 89 by the pin II. At the back endof the jaw'18 there is a curved portion I2 which projects upwards fromthe edge of the fixture as shown clearly'in Fig. 1'7. The arm 88 of thelever 84 is formed at the end in two branches I3 and V I4, which arethemselves forked as indicated clearly in Figures 13, 15 and 171 The pinI5 extends into this forked element I3 and I4 and car ries a collarI8'which fits over the mandrel 43. When therefore the collar I8 isforced over to the right as indicated in Figure 15, the end |2 of themoveable half of the mandrel is forced downward and the movable jaw I8of the mandrel opens upward in the position shown in Figure 15. Whentherefore the spring 81 forces the lever arm 88 to swing clockwise asviewed in the position in Figure 15, the mandrel opens to receive thepaper and aluminum foil. When, however, the portion 82 of the cam 21comes beneath the pin 83, the arm 88 swings counterclockwise as viewedfrom the position shown in Figure 13, and not only does the mandrelclose and remain closed, but also the collar moves over the mandrel andin this motion ejects the winding that may be on it. The extremeposition indicating this operation is shown inFlgures 1'7 and 18. Thetwo other mentioned cams of the system comprise the cams 25 and 28. Thecam 28 controls the mechanism for releasing the tension upon the foilandpaper when the shuttle element, about to be explained, is raised, andapplying it for drawing the shuttle element downward as viewed from theposition shown in Figure 4. The cam 25 controls the cutting of the paperand foil at the proper time as will also be explained shortly. The cam28 is substantially circular in shape 40' except for a small indentationII. The roller I8 carried by the arm I9 which forms a part of the andare pivoted as indicated in Figures 5 and 6 hub 88 pivoted concentricwith the spindle shaft II, but not attached to it, controls the movementof the arm -8I which is also formed as a rigid ele.- ment extendingfrom'the hub 88. The arm 8I carries at its end 82 a rigid rod 83 onwhich are mounted .a number of collars 84 fixed by set screws 85 indesired positions. The rigid rod 83 also passes through the center ofthe collars 88. These collars 88 are at the ends of the levers 81 to theshaft 88 mounted in abearing bracket 89 attached rigidly to the frame orthe base 98. The

end of which is provided with a pin 92 which extends to the arm 8L andwhich carries-the rubber roller 93. As indicated in Figure 5, thebracket 89 is formed with .a base 94 and a parallel bracket element. 95.Between the element 95 and the lower part of 89 there is pivoted asecond roller 98 which may butt against the roller 93 -because of thepressure of the spring 91. This spring is fastened to the fixed shaft 89and presses against 7 a piece 98 set between the arm 81 .and the arm'9I, thus forcing the roller 93 against the roller I 98. When the arm,as shown in the position of Figure 5 is moved counter clockwise, thecollars time the rollers 93 and 98', which may be of rubher or any othersuitable friction material, come in contact with one another and arerotated by shaft 88 carries at its free end an arm9 l the lower Thisoccurs normally at all times. except means of the spur gears 99 carriedat the ends of the rollers 98. These gears are shown in Fig-' erated bythe sprocket chain I8I driven from v the sprocket g'ear I82. Thissprocket gear derives its power originally from the gear 44 which mesheswith the gear I83 driving the shaft I84. This shaft mounted at the side.of the frame 2 is rotated in side bracket bearings I and I88. Asindicated in Figure 2, there are provided two sprocket chains MI and188. IM as has been explained drives the spur 99, while the chain I88drives the spur gear III, which in turn drives the entire, group ofrollers corresponding to the roller I I8 driven by the spur gear II I.The driving of the spur gears 99, H2, H3, H4, H5 and H8 operate the pairof rollers to return the described. The shaft I84 mentioned above drivescontinuously the spur gear I82.

As noted in Figure 1 just beyondthe bearing I88, there is provided aspring I2I which keeps the sprocket gear I22'out of engagement with'theshaft I84, so that the sprocket gear I22 rotates intermittently throughthe clutch drive I23, This clutch drive is'indicated more clearly inperspective in Figure 'I and is operated through the raised arm I25which is pivoted toa bracket I28 extending from the frame 9.. The pivotis seen at;I2'I in Figure 7. When the arm I25 comes above the raisedportion .of the cam' 28, the clutch I23 is moved to the right as shownin Figure 'I and the v I shaft I84 in this position drives the sprocketgear I22 as well as the sprocket gear I82 which as has been stated isrotated continuously sinceit is permanently connected to the shaft I84.The sprocket chain I8I as has been stated, drives the sprocket gear 99;which as is seen in Figure 2 and Figure ,4drives the rubber roller 98.Whep the lever 81 presses the second roller 93 against the roller 98through the action of the spring 91 at that instant the shuttle I88 isdrawn downward. There are provided six pairs of rollers I28 and I29, I38and I3I, I82 and I33, I34 and I35, I38

- (portion I24 on the cam 28 by means of the lever and I31. The spurgear II 2 is driven from the spur gear 99v and at a speed lower than thespur gear 99. The spur gears H3 and I aredriven at the same speed butfaster than the spur gear 2. The spur gear I I5 is driven slower than H3and I I4 and the gear -I I8 is driven faster than either H3, H4, or II5. The result is therefore that the shuttles between the rollers 98 and93 and between the rollers I38 andfll3l, I32 and I33, I 38 and I3'I,advance more rapidly than those shuttles driven by' the rollers I28 andI29; I34

and I35. Asthe shuttles come down to their end positionsall of theshuttles are lined up together, each shuttle having a Uv shaped" openingI38. "As indicated in Figure 10, this U shaped opening is made, longerin the shuttles that move faster. The shuttles that'move faster are thepaper shuttles or the shuttles in which the paper is drawn downward andthe adjustment ofthesize of the U shaped opening I38 and thelength'of'the shutties are such that the paper extends beyond the edgesof the foil. The shuttles are drawn downward at times when the six,pairs of rollers mesh together. This occurs when the roller at the endof the lever arm 19 shown in Figure 5 falls in the low part 11 of thecam 26. At this moment the arm 9| carrying the curved rod 93 is releasedand the spring 91 forces the freely sustained elements againstthe flxedrollers. While the cam 26 remains in this position, the shuttles aredrawn downward. Initially the shuttles arepo'sitioned just above thecutting knives I99, I46, III, I42, I49 and I as indicatedin Figure 2 andFigure 4. The shuttle Ill comprises two metal strips 145 and I46 whichmay be joined at one long side but are opened at the top and bottom.,The material of the shuttle is preferably made of spring steel andsuiiiciently flexible so that the sides between which the normal foil orpaper is inserted, may

be pressed together by the pressure of the springs 91 forcing the rubberrolls against one another.

At the top of the shuttle there is provided a flexible strip Ill whichis made fixed to the shuttle atone end and to rollers at the other end.

This is indicated in Figure 4, where the strip I41 is made fast to thecylinder I I9 driven by the spur gear III. The shuttle is also providedwith a small extending hook I09 which comes in 'contact with a pin I49extending from the bearing housing I49 through which the roller orcylinder III is supported and rotated.. It will be noted 'that the spurgears H6, H1, 9, move at sub-'.

of the cam 20. In this position all of the' rollers III are moved andthe shuttles drawn upward to,

the position shown in Figure 4. At this time the rollers 96 and 98 areof course parted, the end 19 ofthe lever arm '19, beingaway from the lowportion 11 of the cam 26. After the condenser windings have been made aswill 'be explained later, and while the shuttle is in the position'shown in Figure 4, the knives I99; I40, Ill, I92, I" and I. aresimultaneously operated. The

operation of the knives occurs simultaneously through the action of theplate I69; Each knife is attached and projects into the plate I66. Theplate I69 is supported on the shuttle I'I".about which it is free tomove. Thelower end of the plate I59 has extending therefrom an arm IBIat I the end of which is a roller bearing I62 which bears against thecam 26. The'cam 26 is.pro-' vided with a projecting raised portion Inwhich as shown in Figure .5, throws the arm carrying "I62 outward to theright,'therefo re moving the top of the plate III as viewed in Figure 5to the left. The knives, I39, I, Ill, I42, Ill and I are positionednormally as indicated in Figures 2 and 4 with the plate portion-facingtowards the right and just beyond the slots nthe frame In where theshuttles pass. The knives are formed of two parts, the cutting plateswhich have already been named. I99, I46, IlI, I42, I49 and I, and thebearing edges I" which are held in the framell" in a cylindricalperforation in the frame by-means of thescrews I66. Theposition of theedge l ll may be properly ad winding of the condenser element begins.

justed by rotating or moving the cylindrical body I" in which thebearing edge is formed. The action of the plate I66 is such as to sweepthe knife edge againstthe bearing just beyond the end of the shuttle. I9

- The knives I99 are set in the plate I59 in the perforations ISl-andheld in place by the lock 'bolts I69. These knives may be removed andreplaced or sharpened when they becomezdull. Theejecting mechanism forejecting the windings when completed has already been explained in ing.Themandrel is'in the position inthis.

case as shown in Figure 4. The next operation is the feeding and thewinding of the foil and paper bythe downward motion of their respectiveshuttles IIIII to the place where the slots I38 becomealigned with thefingers I6I and I62 as indicated in Figure 4. These fingers are pivotedI by the shaft I63 held by the frame arm III. The

lower end of the fingers are tensioned by means of aspring I64. Thefingers I6I, I62 are therefore formed as clamping jaws and it will benoted theyare operated from their lower ends through the arms I65 andI66.respectively. Formed 'as a part of the jaws I6I and I62 from :eacharm I65 and I66, there projects at the end a pin I6'I The movementsoflthe arms are conand I66. trolled by the cams 29 and 39 moving againstthe pins I66 and I6! respectively. The cams 29 and 99 as viewed inFigure 4 rotate in a counterclockwise direction. In Figure 4, the jawsare shown in an open sition. When the projection I69 of thecam, 3 .comesto the right of the pin I61, the projecti IIIlof the cam 29 is also atthe right of the p n I66, The slow movement of the cams 29 and 39 inthese positions rapidly force apart from one-anotherthe pins I61 and I68and therefore bring together the jaws or fingers I6I and I62 in aposition-aligned with the U shaped slot I39 in the shuttles Hill. Itwill be noted in this respect that the projection I69 is convex-on topand therefore as the pin I6I rides, over it, the pin is actually movedto the right while the ,pin I69 is moved to the left. Both projections,however, continue to move to the right in'the same counterclockwiserotation. These jaws remain closed until the pin or arm 63 of thevbellcrank lever 64 rises off the depression I66 in the cam 21 asindicated in a position shown in Figures 13 and 14. When the'pin 63assumes this position the shuttles I96 have already been raised,

Too

so that the mandrel when it closes; closes only over the paper and foilheld fast by the closed jaws IN and I62. As the mandrel closes, the jawsI6I and I62 snap open so that the foil and paper is not 'held belowthe'mandrel when it' begins to turn." During this operation, the jaws ofthe mandrel remain'stationary in a position with the opening alignedperpendicularly inthe direction of the shuttle. ,After the mandrel hasclosed, and the shuttle withdrawn. and also after mechanism describedpreviously allows the mandrel to be turned by the shaft I1, and theThis, continues until the winding has accumulated the desired number ofturns which is adjusted by the proper choice of the gears. shown inFigure 9. The choice of gears may be varied since their relativeposition maybe varied by the arm Ill 'the jaws I9I and I62 have opened,the clutch"- carrying the gear Nib The gears 2i and I9 may be mounted inany desired position in the slot I12 depending upon the proper'choice ofgear size to produce the desired ratio of turns of the mandrel shaftwith that of the control mechanism.

As will be clearly understood from-the description of the mechanismabove, one complete rotation of the cam shaft I4 corresponds to thecompletion of onewindingJ The operation of the mechanism is repeatedwith each rotation of the cam shaft I4. The winding of the condenserfoil and paper on the mandrel will continue until the protrusion I13 onthe cam 28 comes beneath the finger 30 of the clutch lever 30. When thisoccurs the shaft I'I driving the mandrel 43 is freed and the windingcomes to a stop. when the winding has ceased, the projection I53 on thecam moves the knife plate I50 and the knives as viewed in Figure 2 moveto the right cutting off the foil and paper. This is quite a rapid"operation and the finger soon passes beyond the projection I13 allowingthe shaft I! to drive again the mandrel shaft'li' and wind up the looseends of the condenser winding. The mechanism of sealing not previouslydescribed then comes into play. g

The mechanism is shown in Figure 2, Figure 7 and Figure 8.

Mounted on an extension of the frame I0 is a small glue-pot I14, andabove this at the left is mounted asmall pulley I15 which is rotatablymounted with a shaftl'ificarrying the glue brush 1'". That is, the shaftI18 and the brush I'II turn with the pulley I15. A spring is provided atone end of the shaft'to keep the brush in the position shown in Figure2. A line I18 is wound about the pulley ms to which it is also attachedat one end, while the other end is attached to the arm I 80. The arm'I80 has a projecting finger I8I which is held in contact with the .cam32 by; means of the spring I82. The arm I00 is pivotcd at the base bythepivot I03. The other end'of the spring mentioned above-is attached to asecond arm I84 which also is pivoted with an upwardly projecting fingerI05 .which is held in position against the cam 3|. The projection I06 onthe cam 32 throws over the arm I00 t0$1lh6 right, thus raising the gluebrush I11 against the condenser winding on the mandrel. Shortlyafter-this occurs, the projection I05 comes in v the depression in thecam 31, thus allowing the roller I01 carried at the end of the arm-l0lto press against the condenser windings. This completes the sealingoperation and shortly after this occurs the finger 34 again comes underthe raised portion 33 on the: cam 28 bringing the mandrel to'rest withthe mandrel in a horizontal position, that is the split between themandrel halves is lined perpendicularly upward in the direction of thecenter shuttle. The mandrel is brought to a stop in the exact positionby means of the mechanism shown-more particularly ,in Figure I9. This isaccomplished by means of the stop nut 58 which comes in contact withthe' head of the set screw 51 as the clutch releases the shaft L fromthe shaft II. The shaft I'l' continues to turn on account of the actionof the dra spring until the head of the bolt 50 comes in contact withthe projection of the set screw 51: This stops the mandrel in theposition abovedescribed. The next operation isthat-of removing thecondenser'winding and this occurs as is shown in Figures 13 to 18, thewinding being completely ejected when the pin 63 has risen to the top ofthe projection 62 of the cam 21. The pin 03 is imrecess 'I'I in the cam26.

mediately returned to the depression I00 and.

the-mandrelis opened in a horizontal position ready to receive the paperandthe foil for the new winding. The shuttles I00 in which the paper andfoil from the rolls 1 at the top of the frame 6 are threaded normally inthe position indicated in Figure 4. At the time that the mandrelisopened the rollers 96 and 93, shown more .clearly in Figure 6 and theother corresponding rollers are brought together by means of theroller'18, at the end of the arm 19 dropping into the v This bringsdownward the shuttles in their proper speeds and to the position wherethe jaws IGI and I'GT-may grasp all of the foil and paper by comingtogether in the U shaped opening of the shuttle slots. The rolls 96 and03 are immediately released when the shuttles have reached their lowerposition and as soon as the jaws I61 and I62 have grasped the. paper andfoil, the rollers I I0 are operated carrying upwards or returning theshuttles I00 to the, position indicated in Fig. 4. The mandrel is thenclosed by the pin 03 rising out of the depression I60. The jaws IG I,I62, following this are opened and their the shafts I7 and I 'I' areagain connected so that the mandrel is rotated for winding up the nextwinding. .The machine is capable of producing condenser windings of asize depending upon the width of the paper and foil that the machinenormally carries. The number of turns may be determined solely by theproper choice of gears as has been explained above and condenserwindings of from 50 to 60 turns have been made in the present type. ofmachine'herein described. These condenser windings may be rapidly madeand 'the machine ofthe present invention is capable of turning outfrom.at least Without further enumerating the variations that the presentembodiment might take, and without limitation to the exact embodimentdescribed above, I new claim "as my invention:

- 1. Iii a machine for automatically making condenser windings, meansfor feeding the paper and foil including shuttle means formed of springmetal in which paper and foil are advanced, a mandrel, clamping meanspositioned below said ing the paper and foii in said shuttle, saidmandrel being split and means for opening and closcoupled and meansoperated thereafter to bring the mandrel shaftwto rest in adesiredposition.

3. In a machine for-making automatically condenser windings, a mandrelshaft having a mandrel formed of two parts, one pivoted adjacent theother, and having a projecting end, a collar .positioned over saidmandrel, and means includ ing a camfor moving said collar in positionsat the free end of the mandrel, at the end having the projection, and ina position between.

4. In a machine for making automatically condenser windings, means forwin dingautomatlcally paper and foil on a mandrel, means for stoppingsaid mandrel for cutting the foil and paper,

. mean's for continuing the windingto wind the cut ends, means forsealing .the same and means for stopping the mandrel when the sealing iscompleted.

3,000 to 10,000 such windings per normal day.

' mandrel and in line with said shuttle for grasp- 5. In a machine formaking automatically condenser windings, means for winding automaticallypaper andv foil ona mandrel, means for stopping said mandrel for cuttingthe foil ,and paper, means for continuing the winding to wind the cutends, means for sealing the same, means for stopping the mandrel whenthe sealing is complete and means for ejecting the winding and threadingthe new winding while said mandrel is at rest.

6. In a machine for making automatically condenser windings, a frame,means for supporting a plurality of paper rolls on said frame, aplurality of guides, each of said guides being provided'with a shuttle,means including said shuttles for feeding the material from said rollsto a central point, a mandrel positioned at said central point and meanspositioned below the mandrel for graspingthe material in said shuttlesand means for returning said shuttles to a 'normal position.

7. In a machine for making automatically condenser windings, .a frame,means for mounting rolls of foil and paper at points near the top ofsaidframe, means for threading said foil and paper to a central pointincluding a plurality-of shuttles substantially enclosing said paper andfoil, guiding means for guiding said shuttles,-

means for suspending said shuttles normally in the upper part of saidguiding means, a plurality. of knives positioned at various points belowthe normal position 'of the-shuttles, means,for operating saidshuttlestobring them together at a central point, a mandrel positionedat saidcentral point and means for grasping the paper and foil in said shuttlesand means allowing said shuttlesto return to their normal position.

8a In a machine for making automatically condenser windings a frame,means for mounting rolls of foil and paper at points near the top ofsaid frame, means for threading said foil and paper to a central pointincluding a plurality of guides, a spring shuttle provided in each .ofsaidguides substantially surrounding said foil and paper, means forexerting pressure on the outside of said shuttle to grasp said foil andpaper and to advance simultaneously said shuttles to a central position,means provided at the central position for grasping the paper and foilin said shuttlesand means for'returningthe shuttles to their normal.position. Y

9. In a machine for making automatically condenser windings, a shuttlemechanism for feeding the foil and paper comprising a guide having ashuttle therein comprising two spring surfaces at eachside of saidpaperand means providing an opening at the lower part of said shuttle forgrasping the paper and foil within the shuttle.

10 In "a machine for- 'auto matlcally making condenserwindings, a framehaving spindles for holding rolls of foil and paper spaced substantiallyradially from a central assembly point? a plurality of guides, means fordrawing the foil a and paperthrough the guides to thefmandrel means,means for retracting the drawing means,

means for grasping the ends of the foil and paper,

and mandrel means for winding the same.

11. In a machine for automatically making I condenser windings, incombination means for feeding foil and paper of a plurality ofrolls ofthe same to a central point, a mandrel positioned at said central point,said mandrel having one stationary part and one pivoted part, thepivoted part having aportion adapted to fold with the stationary partand an extending arm at the other end thereof, a collar positioned oversaid mandrel substantially at the point of pivot. means for moving saidcollar longitudinally of said mandrel whereby thewinding is ejected whenthe collar is moved in one direction "and the mandrel direction.

' 12. In a machine 101 automatically making condenser windings incombination means for feeding a plurality of rolls of foil and paper toa central point, said means comprising a frame having a plurality ,ofguiding members, means for moving said. foil in said guiding members anda plurality of cutting edges each positioned in said frame atcorrespondingly different points in said guiding means corresponding todiflerent distances from said central point and means singly operativefor operating said several cutting means for severing said foil andpaper.

- 13. In a machine for automatically making condenser windings incombination, a frame having a plurality of substantial radial guides forguiding strips of foil and paper to a central point, apair of cuttingknives positioned across said guides, means holding one set ofsaidknives in a fixed position and means operative to move the other setof said knivesto sever-saidfoil and paper.

- GEO. W.

-is opened when the collar is moved in the other"

